Motor truck



Ja 31, 1933, QSCHNELL 1,895,866

MOTOR TRUCK Filed Nov. 12, 1951 Con: RAD SCH NELL INVENTOR ATTORN EY Patented Jan. 31, 1933 UNITED STATES CONRAD scHnELL; OF'WOODHAVE1\T;.NEW Yon]:

moms TRUCK Application filed November 12:, 1931. js erial No.57 4, 52 8.

This invention relates to trucks and more particularly to chassis therefor, adapted .to be used with truck bodies the contents of which have to be dumped.

In apparatus of this kind heretofore 1n use, the forward end of the body was usually raised by means of a hydraulic or screw hoist or similar means well known in the art. It is the particular purpose of the invention to provide the truck chassis with means by which the body resting upon the chassis can be elevated to any desired position'without the use of a hoist. Another object isto make this invention particularly applicable 'to trucks of the underslung type. A further object is to provide a chassis which is made of essentially two units, one'the motor or power unit and the other the body unit, both ofwhich can easily be'disconnected, so that repairs to either unit can readily be made different places or departments of repair shops. Stillother objects will becomeapparent in the following specification and'the accompanying drawing in which a preferred embodiment is described and shown.

In the drawing, Fig. 1 is an elevational view of a motor truck embodying my improvements, the left rear wheel being omitted forsake of clear- 5 ness to showthe novel means for lifting the truck body at an angle for dumping purposes. All the various parts are shown in elementary form; only in more or less diagramv matic'style. In dotted lines in the same figure is shown the truck body in a tilted position ready for dumping, and also the operating lever mechanismin an unlocked position just prior to elevating the body, as well as the front wheel and the lower edge of the beam upon which the body support is resting in a position which they assume when the body is elevated as shown; and V Fig. 2 is a fragmentary plan view of the right side portion of the chassis. 7

7? '45 Like characters of reference denote similar parts throughout the several views and the following specification. V V

10 is a power unit of a motor truck C0111- prising a cab 11, a hood covered engine 12,

: a pair of front wheels 13, and a pair of rearwardly extending beams 14'. 1 5"arefraine members resting upon beams '14,; to the rear en'dsof which they are pivotally connected by ineanscf pins 16-supported 'by"journals 17 at the underside of the frame, members. 18 are rear wheels mountedlu'pon anaxle 19 which isfastened: to the underside of the frame members 151 20 are ratchet wheels mounted upon axlel9 and keyedor otherwise suitably fastened to the rear Wheels) 18 1 so that they will move in unisontherewith. Upon a pin 21 at bothsides of the frame members 15 is 'pivotally fastened a' substaii tially horizontally'disposed lever 22, its rearwardly extending fendbentat an-an gle at'23', while its forward 'endterminate's in acam like face 24. 25 is 'aflatspringattached to each frame member'15' ur mgithe,

rearwardly extending end 23"downwardly.

26 is an operating lever mounted upona pivot '27 near the drivers seat inthe jcab.

'A horizontal lever 28 connects operatinglever 26 with an Lshap'edlever29 'pivotedat 29a and'connected' by a vertical bar30 to another L shaped lever31 fulcrumedupon a shaft 32 which extends across both beams-14.. V Lever 31 is hook shaped at its top to engage 'a pin 33 in the front end ofeach of the frame members." Upon the otherend of theshaft 32 is a similar lever 31a which, however, is

crank shaped only. Ara point between the hook shaped ends of levers 31 and 31a and shaft 32, each oneofjthe levers haspivoted to it by means of a pin 34 a push r'od35 which 4 is guided at the side ofeach ofithe beams 14 by abracket 36. 'The e'xtremelrear en'dof the rod 85 is bent overat 37 and engages each of the cam like faces 2410f the spring levers The operation of the apparatus is as follows: "135;?

p The position shown iii fulllines'in' Fig. 1 is the normal one for a'truck whilein motion. Shouldit be desired to dump the contents 7 of the body, the truck isstopped and the operating lever broughtbyxthe driver into the position shown inwdotted lines inv the same figure. ,This.unlocks theilevers' 31 and 31a 'frompins 33. This movement simultaneousp 7 ;ly.;disengage's rods 35 from cam fac'es24 of each of the spring levers 22, when springs force levers 22 downwardly and cause ends 23 of these levers to engage ratched wheels 20. The truck is then reversed, and because the ratchet wheels 20 travel in unison with ing of the journals 17 about the fulcrum 16,

until a body 38 which is fastened upon the frame members 15 is at the desired angle ready for dumping. A safety chain 39 may beprovided for to limit the angle of elevation. i

" After dumping the truck isagain driven forwardly until the frame members again restlipon the beams 14, during which travel the springlevers- 22 merely rest, respectively, slide u on the faces of the ratchet wheels 20. When ack in the normal position, the driver locks the frame members to the beams by simply'throwing over againthe operating lever 26 into its initial position in which levers 31. and 31a again engage pins 32 and push rods contact with cam faces 24 of spring levers 10f which maybe greatly varied, and mechan- 22 and thus disengage spring levers 22 from ratchet wheels 20.

"It is'obvious that should it be desired to repair either the power unit or the body unit, they can easily be disconnected by simply pulling out the pins 16. ThlS enables the individual units tob e repaired in different departments of repair shops withasaving of, time, or new power or body units may readily be interchanged for such needing repairs.

I have shown rinciples of the invention in diagrammatic form only, that is, madeup of devices which are more or less elementary, and the details ical equivalents may-be substitutedfor any or all of them. I thereforewishit to be understood that many changes in form, proportions, minor details and combination of parts maybe resorted to without departing from or sacrificing any of the advantages of the invention as defined in the appended claims.

What I claim as new is; 1., A motor truck comprising a powerunit consisting of a supporting structure for an engine, front wheels and drivers seat having a rearward extension, abody frame, a body fastened thereto, rear wheels supporting the frame, the said frame being pivotally conneeted to the said extension, ratchet wheels rotating in: unison with the said rear wheels in the drawing and described- .in. the specification an embodiment of the November, D.

and coaxially mounted therewith, means fas-- tened to the said frame adapted to engage the ratchet wheels for purposes of tilting the said frame when the truck is driven rearwardly, and operating 'means at the power unit connected to the said means. i

2. A motor truck comprising a power unit consisting of a supporting structure for an engine, front'wheels and drivers seat having a rearward extension, a body frame, a body fastened thereto, ,rear'wheels supporting the frame, the said frame being pivotally and detachably connected to the said extension, ratchet wheels rotating in unison with the said rear wheels and coaxially mounted there with, means fastened to the said frame adapted to engage the ratchet wheels for purposes of tilting the said frame when the truck is driven rearwardly, and a. lever at the power unitoperably connected to the said means.

8. A motor truck comprising a power unit consisting of a supporting structure. forv an engine, front wheels and drivers seat having a rearward extension, a bodyframe, a body fastened thereto, rear wheels supporting the 5;

means fastened to the said frame adapted to engage the ratchet -wheels for purposes of tilting the said frame when the truck is driven rearwardly, operating meansat the power unit connected to the said means, and a locking'devi'ce betweenthe said. extension and frame operably connectedto the said operatting means. e

4. A motor truck comprising a power unit consisting of a supporting structure for an engine, front wheels and driver-7s seat'having a rearward extension, a body frame, a body fastened thereto, rear wheels supporting the frame, the said frame being pivotally connected to the said extension, ratchet wheels rotating in unison with the said rearwheels,

means fastened to thesaid frame adapted to engage the ratchet wheels for purpose of tilting t rearwardly, operating means at thep'ow'er unit connected to thesaidmeans, a locking device between the said extension and frame operable by the said operating'mea'ns, and means limiting the extent of the tilting movement of said frame) I Signed at Brooklyn, inthe'countyof Kings and State of Nelw York, this 5th day of 931. QQNRAD SCHNELL.

e said frame when the truck. is driven 

